import Vue from 'vue'
import Vuex from 'vuex'
import getters from './getters'
// import app from './modules/app'
// import settings from './modules/settings'
// import user from './modules/user'
// import permission from './modules/permission'

Vue.use(Vuex)

// https://webpack.js.org/guides/dependency-management/#requirecontext
const modulesFiles = require.context('./modules', true, /\.js$/)

// you do not need `import app from './modules/app'`
// it will auto require all vuex module from modules file
const modules = modulesFiles.keys().reduce((modules, modulePath) => {
  // set './app.js' => 'app'
  const moduleName = modulePath.replace(/^\.\/(.*)\.\w+$/, '$1')
  const value = modulesFiles(modulePath)
  modules[moduleName] = value.default
  return modules
}, {})

const store = new Vuex.Store({
  // modules: {
  //   app,
  //   settings,
  //   user,
  //   permission
  // },
  modules,
  getters
})

store.watch(function(state) {
  return state.chat.sessions
}, function(val) {
  localStorage.setItem('vue-chat-session', JSON.stringify(val))
}, {
  deep: true/* 这个貌似是开启watch监测的判断,官方说明也比较模糊*/
})

export default store
